minor cleanup

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62789 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/statbox.cpp

@@ -114,7 +114,7 @@ void wxStaticBox::AddChild( wxWindowBase *child )
     {
         // make this window a container of other wxWindows by instancing a wxPizza
         // and packing it into the GtkFrame:
-        m_wxwindow = wxPizza::New( 0 );
+        m_wxwindow = wxPizza::New();
         gtk_widget_show( m_wxwindow );
         gtk_container_add( GTK_CONTAINER (m_widget), m_wxwindow );
     }